Research Topics
| Ava K BittnerSummaryAffiliation: Johns Hopkins University Country: USA Publications
Research Grants
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Detail Information
Publications
Worse-than-usual visual fields measured in retinitis pigmentosa related to episodically decreased general healthAva Katherine Bittner
Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University, 600 N Wolfe St, Woods 465, Baltimore, MD 21287, USA
Br J Ophthalmol 97:145-8. 2013..We examined whether retinitis pigmentosa (RP) subjects' worse-than-usual vision measures were related to episodic changes in psychosocial factors and/or general health...
Vision test variability in retinitis pigmentosa and psychosocial factorsAva K Bittner
Department of Ophthalmology, Johns Hopkins University, Baltimore, Maryland, USA
Optom Vis Sci 88:1496-506. 2011..We explored whether greater amounts of short-term variability in visual acuity (VA), contrast sensitivity (CS), or visual field (VF) in retinitis pigmentosa (RP) was related to disease severity or psychosocial factors...
Photopsias are related in part to perceived stress and positive mood in retinitis pigmentosaA K Bittner
Johns Hopkins University Wilmer Eye Institute, Baltimore, MD 21205, USA
Eye (Lond) 26:101-8. 2012....
Test-retest, within-visit variability of Goldmann visual fields in retinitis pigmentosaAva K Bittner
Wilmer Eye Institute, Johns Hopkins University, Baltimore, Maryland, USA
Invest Ophthalmol Vis Sci 52:8042-6. 2011..The authors examined the short-term variability of Goldmann visual field (GVF) results converted to retinal areas in retinitis pigmentosa (RP) subjects...
Characteristics and possible visual consequences of photopsias as vision measures are reduced in retinitis pigmentosaAva K Bittner
Wilmer Eye Institute, The Johns Hopkins University, Baltimore, Maryland, USA
Invest Ophthalmol Vis Sci 52:6370-6. 2011..This study explored whether the location of photopsias (spontaneous phosphenes) in retinitis pigmentosa (RP) is related to the severity of vision loss, as has been suggested...
Coping strategies to manage stress related to vision loss and fluctuations in retinitis pigmentosaAva K Bittner
Johns Hopkins University, Baltimore, Maryland, USA
Optometry 81:461-8. 2010..To address these issues, eye care providers need to be aware of what coping strategies RP patients use to successfully manage their vision loss...
A survey of photopsias in self-reported retinitis pigmentosa: location of photopsias is related to disease severityAva K Bittner
Johns Hopkins University, Wilmer Eye Institute, Baltimore, MD 21205, USA
Retina 29:1513-21. 2009..To characterize photopsias or light shows in patients self-reporting retinitis pigmentosa and determine associations between their location and patient-reported visual function...
Visual function and performance with blue-light blocking filters in age-related macular degenerationAva K Kiser
Lions Vision Center, Wilmer Eye Institute, Johns Hopkins University, Baltimore, Maryland 21205 2020, USA
Clin Experiment Ophthalmol 36:514-20. 2008....
Reported effects of non-traditional treatments and complementary and alternative medicine by retinitis pigmentosa patientsAva K Kiser
Johns Hopkins University, Wilmer Eye Institute, Baltimore MD, USA
Clin Exp Optom 91:166-76. 2008..We assessed CAM use by RP patients and its perceived effectiveness...
Reliability and consistency of dark-adapted psychophysical measures in advanced eye diseaseAva K Kiser
Lions Vision Center, Wilmer Eye Institute, Johns Hopkins University, Baltimore, Maryland 21205 2020, USA
Invest Ophthalmol Vis Sci 47:444-52. 2006..To establish reliable vision measures allowing functional monitoring in patients with severe vision loss...
Grating acuity and contrast tests for clinical trials of severe vision lossAva K Bittner
Lions Vision Center, Wilmer Eye Institute, Johns Hopkins University, Baltimore, Maryland 21205 2020, USA
Optom Vis Sci 88:1153-63. 2011..To evaluate the reliability and validity of grating visual acuity (VA) and contrast sensitivity (CS) tests, which could be useful outcome measures to assess changes in severely reduced vision...
The artificial silicon retina in retinitis pigmentosa patients (an American Ophthalmological Association thesis)Alan Y Chow
Department of Ophthalmology, Rush University Medical Center, Chicago, Illinois, USA
Trans Am Ophthalmol Soc 108:120-54. 2010..raised several questions: (1) Would neurotrophic effects develop and persist in additionally implanted RP patients? (2) Could vision in these patients be reliably assessed? (3) Would the ASR be tolerated and function for extended periods?..
Orientation and mobility assessment in retinal prosthetic clinical trialsDuane R Geruschat
College of Education and Rehabilitation, Salus University, Elkins Park, Pennsylvania 19027, USA
Optom Vis Sci 89:1308-15. 2012....
Reliability and consistency of visual acuity and contrast sensitivity measures in advanced eye diseaseAva K Kiser
Lions Vision Center, Wilmer Eye Institute, Johns Hopkins University, Baltimore, Maryland, USA
Optom Vis Sci 82:946-54. 2005..The criterion for change needs to be larger than for normally sighted controls, i.e., approximately two to three lines for VA and between eight to 11 letters for CS...
Research Grants
- Training in Clinical Trials for Subjects with Low VisionAVA KISER; Fiscal Year: 2007..This research may indicate the value of CAM-related interventions, and thus potentially improve the reliability of vision tests as outcome measures during future clinical trials and the quality of life for RP patients. ..
